Ideally needs the second grey plug wiring in alongside, that or the new multi-pinthen you get charging of camper's leisure battery, reversing lamp, and (i think) habitation lighting and fridge thrown in as well

Popular consensus is; it would probably work but try it see if having a few lights on at once blows a fuse, (either)unplug camper, and or refit LED bulbs on back of everything to be on safe side, these use a fraction the current your bulbs do as they aren't creating any heat as a by product only light

Alexd wrote:Question.As an insulated unit and essentially just sat in back of a truckHow does the earth work?I always imagined a trailer or caravan would be properly grounded through the towball being metal

The towing sockets on the back of the truck - 12N (black), 12S (grey), or single 13-pin - carry earth leads back to the truck's chassis as well as power leads to the camper/trailer/caravan.

Alexd wrote:Thank,I' D just wondered if the metal-metal of tow hitch was used in any way

Nope. It might be an issue with the trailer lights if the earth connection in the plug fails. You can get some very weird effects, but a well designed lighting system won't be connected to the trailer chassis. Note the caveat.

2003 Ford Ranger 2.5 TD 109 Supercab, sold to SimonTandy Pony, soldNorthstar 750, sold K33F-built Penthouse Pee Pod, sold to Simon with the RangerBuilt the lozenge for my wee sister, its now finished and in regular useNow converting a blue Tranny.